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TO ALL WHOM IT MAY -(JONGERN y A! Beit known that I, GEORGE F. GRAVES, of Mount Upton, in the county of Ohenango, and State of` New York, have invented a new and improved Wagon Jack; and IV do hereby declare that the following is a full, clear, and exact description thereof, which will venable others skilled in the art to make and use the same, reference being had to the accompanying drawing, forming part of this specification. l l

The drawing is a side elevation (partly in section) of my wagon jack. My invention consists `in the combination with each other of a lifting-lever, havin'ga bifurcated end, a toothed looking-bar, a pin for engaging with the teeth of the locking-bar, and a standard, whereby a simple and eicient jack for raising the axles of carriages whilst lubricating or removing the wheels is obtained.

' A. designates the standard, which is an upright, having', a suitablebase or feet, a a. B is the lifting-lever; l

and this isA pivoted to the standard near the top, and also near the lifting end of the lever, as shownl at b. C is the locking-.bar or lever. This 'is pivoted, near one of its ends, to the lifting-lever B, and passes through a l slot provided for it in the standard A; andit has a series of teeth, c, on its under side pointing rearward, which engage or are caught over a pin or rod, c', secured across the standard. This bar has its rear end bent downward toward the lever B; this portion of it being designated by the letter al, by which it may be liberated when .desired by merely grasping the lever B and pressing down with the thumb upon the portion d, the operation being like an ordinary old-fashioned door latch. The carriage axle is to be caught in the bifurcated end o'f the 'lever B, or it may be raised by resting it upon the top of the end of the lever, a hollowed-out portion being provided for the better holding it, as shown at le. The axle is elevated by depressing the .lever B in the usual way.

It will be noticed that by providing the locking-bar C with the bent end d `it maybe liberated quickly with one hand; thus, little manipulation is necessary to operate the jack. v

What I claim as new, and desire to secureby Letters Patent, is-

The thumb-piece cl, of the ltoothed locking-bar C, in combination with the lever B, arranged with the standard A, substantially as described for the purpose speciiied.

' GEORGE F. GRAVES.

' Witnesses:

LYMAN D, IvEs, HENRY CHAMBEBLIN. 

